Cian Gallagher

Cian Gallagher

Thoughts, stories and ideas.

Turning a Singing Fish into a Smart AI Assistant with ESP32 and Home Assistant

Turning a Singing Fish into a Smart AI Assistant with ESP32 and Home Assistant

Bring your Billy Bass back to life with AI! Learn how to turn a singing fish into a fully interactive smart assistant using ESP32-S3, ESPHome, and Home Assistant’s Summer of AI features. Includes custom wake word, real-time mouth motion, and OpenAI-powered conversations.

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How to Build an ESP8266 Infrared Smart Controller for Home Assistant

How to Build an ESP8266 Infrared Smart Controller for Home Assistant

Turn your old infrared-controlled devices into smart home gadgets! This step-by-step guide shows you how to build an ESP8266 IR controller that can both receive and send signals, integrate with Home Assistant or Alexa, and stay in sync with your original remote. Includes full wiring, ESPHome YAML, and testing walkthroughs.

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Building a CO2 sensor using a Pi PicoW & automating a home ventilation system part 2

Building a CO2 sensor using a Pi PicoW & automating a home ventilation system part 2

The second in a 3-part series giving a walk-through of creating a custom co2 sensor using the raspberry pi picow and hooking it up to a home ventilation system.

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Building a CO2 sensor using a Pi PicoW & Automating a Home Ventilation System - Part 1

Building a CO2 sensor using a Pi PicoW & Automating a Home Ventilation System - Part 1

The first in a 3-part series giving a walk-through of creating a custom co2 sensor using the raspberry pi picow and hooking it up to a home ventilation system.

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Switchboard v1.0.0 and Switchboard Pro

Switchboard v1.0.0 and Switchboard Pro

Announcing the release of switchboard v1.0.0 and switchboard-pro.

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Introducing Switchboard

Introducing Switchboard

In this post I introduce you to switchboard. A CLI tool written in Golang to automatically organise files on your machine.

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How I exploited a bug in the Avios Travel rewards programme to get 1000’s of air-mile points for free

How I exploited a bug in the Avios Travel rewards programme to get 1000’s of air-mile points for free

A tail of how I found and exploited a bug in the avios travel rewards system in order to get thousnads of air miles for free.

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Building your own MVC Framework in PHP (Part 3)

Building your own MVC Framework in PHP (Part 3)

Third in my series of developing your own MVC framework in PHP

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